Multi-Stage Submersible Pump
First Claim
1. A booster pump to pressurize fluid for use by a pool cleaner in a pool or spa, the booster pump comprising:
- a front housing having an inlet to receive fluid from the pool or spa;
a plurality of diffuser units positioned in the front housing;
a motor housing detachably coupled to the front housing and having an outlet to provide fluid to the pool cleaner;
a submersible motor positioned in the motor housing and operatively coupled to the plurality of diffuser units; and
a space defined between an outer surface of the motor and an interior surface of the motor housing, a self-contained fluid flow path being formed from the inlet, through the diffuser units, and through the space to the outlet.
1 Assignment
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Accused Products
Abstract
Embodiments of the disclosure provide a booster pump to pressurize fluid for use by a pool cleaner in a pool or spa. The booster pump includes a front housing having an inlet, a plurality of diffuser units positioned in the front housing, and a motor housing detachably coupled to the front housing and having an outlet. A submersible motor positioned in the motor housing is operatively coupled to the diffuser units. A space is defined between an outer surface of the motor and an interior surface of the motor housing. A self-contained fluid flow path is formed from the inlet, through the diffuser units, and through the space to the outlet. As the fluid passes over the motor, the motor can be cooled and acoustic output of the booster pump can be dampened. The booster pump can be constructed of plastic for applications in the pool and spa industry.
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Citations
20 Claims
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1. A booster pump to pressurize fluid for use by a pool cleaner in a pool or spa, the booster pump comprising:
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a front housing having an inlet to receive fluid from the pool or spa; a plurality of diffuser units positioned in the front housing; a motor housing detachably coupled to the front housing and having an outlet to provide fluid to the pool cleaner; a submersible motor positioned in the motor housing and operatively coupled to the plurality of diffuser units; and a space defined between an outer surface of the motor and an interior surface of the motor housing, a self-contained fluid flow path being formed from the inlet, through the diffuser units, and through the space to the outlet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A booster pump to pressurize fluid for use by a pool cleaner in a pool or spa, the booster pump comprising:
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a booster pump housing having an inlet to receive fluid from the pool or spa and an outlet to provide fluid to the pool cleaner; a plurality of diffuser units arranged along a common axis within the booster pump housing adjacent to the inlet; and a submersible motor operably coupled to the plurality of diffuser units, a fluid flow path being defined from the inlet and the outlet, the fluid flow path passing through the plurality of diffuser units and over the submersible motor to the outlet. - View Dependent Claims (11, 12, 13, 14)
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15. A method for pressurizing fluid for use by a pool cleaner in a pool or spa, the method comprising:
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submerging a booster pump in the pool or spa, the booster pump having an inlet to receive fluid from the pool or spa, an outlet to provide fluid to the pool cleaner, and a selected number of diffuser units arranged along a common axis; engaging a motor to rotate the diffuser units, the rotation of the diffuser units generating a fluid current from the inlet to the outlet; drawing fluid from the pool or spa into the inlet with the fluid current; passing the fluid through the diffuser units to pressurize the fluid; passing the pressurized fluid over the motor; and expelling the pressurized fluid out of the booster pump through the outlet. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification